18931696

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3931}}^1$

素因数の和:3989

約数の個数: 40

約数和(自身を含む): 42905984

約数和(自身を除く): 23974288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 3931, 4816, 7862, 15724, 27517, 31448, 55034, 62896, 110068, 169033, 220136, 338066, 440272, 676132, 1183231, 1352264, 2366462, 2704528, 4732924, 9465848, 18931696]

約数ペア:

[(1, 18931696), (2, 9465848), (4, 4732924), (7, 2704528), (8, 2366462), (14, 1352264), (16, 1183231), (28, 676132), (43, 440272), (56, 338066), (86, 220136), (112, 169033), (172, 110068), (301, 62896), (344, 55034), (602, 31448), (688, 27517), (1204, 15724), (2408, 7862), (3931, 4816)]